X e eeab axle ajtd wheel



Oct. 2, 1923. 1,469,593

S. HATASHITA REAR AXLE AND WHEEL Filed Feb. 4. 1921 v 5 Sheets-Sheet 1 tgq INVENTQR.

"' ATTORNEY.

Oct. 2 1928.

S. HATASHITA REAR AXLE AND WHEEL Filed Feb. 4. 1921 :5 Sheets-Sheet 2 INVENTOR "new fave.

A TTORNE Y.

S. HATASHITA REAR AXLE AND WHEEL Oc tQZ 19 23 Filed Feb. 4, 1921 5 Sheets-Sheet 5 INVENTOR.

M22. Bf WM ATTORNEY andz'Wheels, of w :of almost any construction Patented Oct. 2, 1923.

UNITED STATES PATENT OFFICE.

sazo urns-mu, or DETROIT, moment.

Applioatioh ans February To all whom it may concern; Be it known that-L' 'SEZQ l-la'rasmn, a b'oct of the 'Elnperor'gf'Japan; rcsidin etroit in the county of \Vayne an State oi lhichi on," hard invented certain new and useful m iroi'omentsin Rear Axles rich thf-foQowing. is a specification. 1

This invention relates to .rearaxles, and wheclsior heav'yduty automobiles, trucks and tractors. It is the'object of thcpresont invention to provide a suitable- :issemhl in that ty of a driving wheel which is driven throng a separate ack shaft and. an internal ar'. 1 he parts'are so designed as to make t e disassembly'ci the wheel-and, the internal gear comparatively easy'while at the some tune providing suitable dust collars and oil retaining cups and packing.

A further feature of 121115 a'escrnbly is an arrangement of the parts in such a way'that an internal brake is aifordod; These and other ob'ectswill be best understood after the detailed construction is explained.

Inthe'drawin I Fig. 1 is a com med plan view and hori'' zontal cross. section through .a psi-t. of the the line 2-2 .of-

rear axle and rear wheel. f-'.Eig. 2 is a section on 3 is a section on the-line 3-3 of ig. 4 is a section on the line -14'of Fi 1. igz 5 is asection on the line 5-5 of F 1.- p hi 6 is a section on the line 60-of 7 is .a section on the line 7-7 of fiig. 8 is an elevation of the tractor wheel. Fig. 9 shows two elevations of the, jack shaft clamp.

'a designates the dead axle; b the 'ack shaftg'c the jack shaft housin expan ing out at the'ccnter to form adi erential'case d. 6 represents a coupling for the priapeller shaft the forward portion of the di eren; tial case, in which is contained the driving gear. 9 designates the rear traction1whee which is have shown to be a cast iron wheel for a tractor and which obviously might be p and .yet embed .the improvements now to he descri Bolted to this wheel is a brake drum It on ilm gar-{soc et whichjopcratcs the l. 1921. Serial No. 2,442.

ver nthrough the sleeve and connects with the brake-lever .1 contained within the dust late and brake drum. Now referring to ig. 8,- it will be seen that this lover s operates the toggle arms t through the link it -and tends to straighten the toggle arms in applying the brake and consequently forces the brake'strap heads u, v a ainst the'inaide of the brake drum h. Eac of these heads 1: is provided with a half circular recess is in w ich engage the studs a: secured on the plate 3 The stra z is bolted to the ends of the studs. The'g ate 3 studs n: and strap a forum spacer an .gui e for the brake straps and prevent the to gle arms colla sing under the influence o thetractile sprm 1 any further tha1iindicated in Fig. 3. The brake straps are riveted to the dust plate p bythe lugs 2.

. This internal brake construction is made possible in an assembly of this type by reasonof the construction now to be described. The s ring pad org-designated 3. This is card on a-castin or supporting member which bu. several notions and is important. This casting or supporting member 4 not only supports the sprin pad 3 but is p'royidad with an inner annu ar flan 5, to

which is bolted the dust plate 11, which together with tcrnal or expanding brake. This same flange 5 is proyrided with an extending partorarm 6 which journals, the jack shaft.- To this end the arm dprovided with a boss or 'a sleeve 7 on its an hearing housing in which may be contain the ba hear ca 9 8.- A: web 9 reinforces the sleeve 7.. he all'bearing ca'get is secured betwecnthe clar'np 10 on c end of the ax housing 0 and the spanner nut 11. ainp 10 1S possibly-best understood from Figs. 4 and.9. It comprises a pair of half ring section's having lugs at either side that may be clamped together by the bolts 12. .A torque pin 18.

the brake drum it houses the informing acomparativply 102g may be clamped in beflanges 19'. at are bolted together. This outer oil cup section is pressed in at the center to form a seat for the packing ring 20 that abuts against the. rin 21 molded in the internal gear web.- A urtherpacking 22 with a metal retaining ring is pressed mesh with the en the end of.

in thede oil eupl This insures adcquateprevision against oil beingthrown out at this point. The internal ar is made up'of a web 28 to which-is riveted the ring gear 24.11am in; internal teetln- These Internal teeth a jackshatt b. 26 designatis a spacing ring having a groovejn'it-s outer surface to carry the packing ring 27. 28 desi nates a. spacing-- cone between the mainro ler bearings 29 and the ball bearings 30 which are carried on the end of the dead axle and are held in place by the s'pannernut 81.

The web of the internal gear is proirided witha hub 32 rovided with a splinod groove 38 adap on the hub of the wheel g.

- Thevmethod of disassembling or assembli ngthe wheel can .now be understood. Tho-hub cap iii-secured :to the end of the wheel hub by the screws 36, All that is necessary is to take of! this hub'eap. and

mg upon the remove the caetellutednut 81 from the end of the dead axle together with its washer.

oti. .probably bearings 29 or possibly leaving those onthe axle grease cohesion. This gives access to the Inside of he external brake and also gives acetate-to e internal or exuding brake and. all its connections. The

- rake linings; maybe renewed or an other I repairs made on the-brakes without 1n any way interfering with the internal gear drive 'orusing any of the oil contained in the drivin' parts for this is ti'gl itly -held,in place yth'e two-section oil cup. If it is desired to get to thegear, thisma be accomplisherl simply' hy retrieving t in outer oil cup section 18 which permits the larpe ear to pulled out o mesh with tie anion; a

What claim is? 1, In an assembly-for the 'pdrpose specitied, the eexnhiiiation of a dead sale, a treetion wheel secured to rotate thereon, a suptpinion 25 which is splined' to fit over the spine 34' depend- .nupported in the opening in said am and in driving connection with the traction wheel.

2. In air-assembly for the purpose speci- .fied, the combination of a dead axle, a supressed center portionot the outerporting membersecured thereto provided with a laterally-extending arm having an opening therethrough, a jack shaft housing, and a twoclamp sccurable to the end of the ja shaft housing and )lOVided with portions adapted to rest in is openmgof the said arm and be secured to said arm 'a. jack shaft pssnin through said jack aha t housin and rotat ly supported within the open n in the arm, and a traction wheel rotatab y supported upon the dead axlennd in'removablo driving relation with the said jack shaft. e

3, In an assembly for the purpose specified, the combination of a dead axle, a traction wheel having t, hub anda brake drum and rotatableupon the dead axle a su porting member provided with a s ce've ttmg over the dead axle andan annular flange provided wlth an arm having an openin thercthrousgh, a. jack shaft housing detaeha ly securabe to said arm and in alignment with the opening, the said suppol-t1 member provided with an outer orseeon flange, an oil cup section secured to the said second flange, and a driven 'gear remoyably splined onto the hub of the tractiou wheel, an outer'cup section removably secured to the inner on section and over the drivengear, a not: suit passing through the jack shaft easing an rotatahly supported in the openi m the said arm, and a driving pinion on t e ehd of the live axle meshing with the teethof the driven gecn.

4. In an assembly for the purpose speci-, lied, the combination of a dead axle, a traction wh'eel rotatable thereoen; a; supporting member having a sleeve secured thereon and provided with an annular flange merging into an'arm having an opening therethrou h, a jack shaft housing mnovebly sccura le to said arm in alignment with said provided with a second or outer flange, an

- oil cup seotion'seoured to the said second 'flan a.driven r in splined relation wit respectto the ob of the traction wheel so as to be disengageablo therefrom, an

ion

outer oil cup section secured to the inner oil cup section and about the driven gear and for holding the same in place, a jack shaft contained in the oak shaft housing and rotetahl supporte *in'theo min in the arm, a driv ng pinion on the on of t e'jack shaft meshin with the driven ear, a brake drum secure to the said traction wheel and enclosin ,the oil cup housing and extending inwar 1 beyond the same over thev space included between the two flanges of the supporting member, and an internal brake contained in said spacejon the inside otthe oil culp member.

an assembly for the purpose spent lied, the combination of a dead axle, a, traction wheel rotatable upon the end of the dead axle jand "-hovin a brake drum attached thereto, said traction wheel provided with n s lined hub, a casting secured to' the dead a e and com rising a sleeve having an outer and inner iiimga, a jack shaft hone ing supported by the inner flange a. dustplate fittini in the brake drum opeliin and 25 auppo rted y the inner flange, an 01 p section supported by the outer flan a driven gear splined reinovabiyjon the truetion whee], hub, an outer ozlnup section bolted to the inner oil cup sectivnond h0lding the driven gear in place a jack sha'ft contained within the jack shalt ho'usin and rotatably supported upon the inner nnge;

and a driving pinion on the end of the-jack shaftmeshing with the teeth of the driven fi. In an assembly for the purpose specified, the combinationeof a dead ax1e,a traction wheel rotatable thereon and provided with a brake drum, a. casting in the form of asprin pad s gigorting'sieeve secured to the den axle an avin an outer 'flanfe and an inner flange, a in ehaft rotatab y su ported by the inner flange, a two-section oi cup supported by the outer flange, a driven gear in detachable driving relation with the traction wheel and contained within the Inner flange containin a two-section oil cup, ported upon the inner flange in the opening in the said 'brakedrum.

7. In an assembly for fled, the combination of v tion wheel rotatabl supported upon the dead axle a d provi ed with a brake drum, a supporting member fitting over the dead axle and havin an outer flange and an inner flange, the inner flange providedwith a bearing opening, a. jack-shaft rotatably supported insthe bearmg opening and having a driving pinion in its end, a twoeection oil cup supported by the outer flange, a driven or in removable driving relationwith the rivin pinion and contained inthe two-section oi cap, a dust Iplate supported by the inner flange and lling the opening in the brake drum, and an internal brake contained within the housin formedby the brake drum and the dust p ate and on the inside of the said twosection oil cup.

8. In an assembly for tied, the combination of tion wheel rotata'b] supported upon the end of the dead ax e and having a brake drum attached, a supporting member having a sleeve fitting onto the dead axle and provided with inner and outer flanges, the bearing opening, a. jock shaft rdtatabfiy supported in the mug opening, a two-section'oil cup secured to the outer flange, a driven r.in detachable driving relation with tie said traction. wheeha pinion on the end of the jack shaft meshin with the'teeth of the driven gear, a due plate supported on the inner flange and filhn the opening in the braltddrum, an interna brake contained between the dust plate and the oil cup, and operating connections for said internal brake su ported througlliethe and dust plate.

n testimony w reef I nflix. my signature.

' SEZO H ATASHITA.

the purpose specithe purpose speciprovided .with 'a sleeve a dead axle, .atrac- 

